John scholl



. (NO Model.)

\ -J. SCHOLL.

SEEE EEEDEE FOR TEEASHING MACHINES.

No. 251,799. Y Patented Jan. 3.1882.

WITNEEEEE. Y

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UNITED STATES PATENT @Erica JOHN sonoLL, or ELK eaovnpoALrEonNrA.

SELF-FEEDER `FOR TH RASHlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 251,799, dated January3, 1882. Application tiled July 20, 1881. (No model.)

To all whom it may concern:

Beit known that I, JOHN SGHOLL, a citizen of the United States, andresiding at Elk Grove, in the county of Sacramento and State ofCalifornia, have invented a certain new and useful Self-FeedingAttachment for Tlirashing-Machines, of which the following is aspecification.

My invention relates to improvements in selffeeding attachmentsforthrashing-machines; and the object of my invention is to provide amachine so constructed that the grain in"the straw, after being droppedupon the feedingplatform, will be fed in a regular and automatic mannerto the separator of a\ thrashing-machine. I attain this object by themechanism illustrated in the accompanying drawings, in Which- Figure 1is a longitudinal section through a portion of a thrashing-machineembodying Fig. 2 is a cross-sectional view of the same. T

Similar letters of reference are used to des- 4 ignate like partsthroughout the several views.

The grain in the straw, as it is dropped from the fork, falls upon thegratingA, which is firmly secured to the main frame of the thrasher.Underneath4 this grating there is a movable grating, B, the slats ofwhich correspond to the spaces in the stationary grating immediatelyabove it. This grating is provided with upwardly-projecting teeth orrods UU. To the underside of this movable grating Iattachjournal-boxesGO, through which pass the cranks D D', the outer ends of which arejournaled in suitable boxes set in the main frame of a thrasher. y

Upon the outer end of the crank D, I key the two pulleys E E', and uponthe end of the crank D', I also key a pulley, (not shown in thedrawings,) which is connected to the pulley E by an endless belt orband.

Beneath the movable rack is placed the graincarrier or endless belt G,which receives al1 kernels of grain that may be shaken out, and whichfall through the gratings A B. At any convenient point along this grain-carrier I place the drum H, upon'a shaft, I, upon one end ot' which iskeyed the pulley J, connected by an' endless belt or band with thepulley E. The other end of the shaft is provided with the pulley K,connected by a suitable belt with the pulley L upon the crankshaft M.Between i theside boards of the thrasher, andfnpon the said shaft M, Iplace the roller N, provided with projecting teeth or spikes O, the ofceof which will be more fully explained hereinafter.

Upon the outside of the machine, and about on a line with the inner endof the grating or screen A, I attach the guide-pieces P P, which are setslightly inclined toward the outer end ot' the machinefThat portion ofthe guidepieces which extends above the top edge of the thrasher isslotted, as is clearly shown in Fig. 1, said slots forming a bearing orguide, in which rises and falls the cross-bar Q., provided withdownwardl y-projectin g rods or teeth R B. To the outer ends of thiscross-piece are firmly secured the connecting-rods S S, the lower endsof which are pivoterl upon the crank-shaft M, as is seen at Fig. 2.

The operation of my improved self-feeder is as follows, to wit: Theproper belt-connection having been made and the machine putin motion,the grain in the `straw is deposited by any well-known means upon thefeed-grating A and as the cranks D and D are revolved they carry withthem the feeder or movable grating B and impart a rotary reciprocatingor fourmotion feeding movement toit, or, in other words, the feeder isso moved as to rise toward the stationary grating, move forwardhorizontally, fall to its former level, and assume its original positionagain. This movement will canse the upwardly-projecting teeth or rodssecured upon the feeder to pass upward through the slots in the lixedgrating, enter the lnass ot' straw and grain upon the feedgrating A, andforce it forward in an intermittent manner to the separator.

The amount of material which is fed to the separator is regulated andcontrolled by the action ofthe bar Q and downwardly-projecting teethR,'so that as the teeth U of the feeder B advance they will force thestraw toward the separator, and the said bar Q will rise in its' guidesand permit a certain quantity of straw to be forced over the end of thefeed-grating. Direction is given to it by the roller N, the projectingteeth of which roller will assist in directing the grain to the throatleading to the separator. As the feeder is resumingits origi- IOC nalposition preparatory to carrying forward another quantity of strawcontaining grain to the separator the cross-bar Q will descend in itsguides and its teeth prevent any surplus straw or grain from passing tothe separator.

Having thus described my invention, what I claim, and desire to secureby Letters Patent,

In a self-feeding attachment for thrashinglnachines, the combination,with the fixed grating A and movable grating' B, having journalboxes C Oand teeth U, the latter adapted to enter the spaces in the uppergrating, of the crank-shafts D D, pulleys E E', grain-carrier G, drum H,having a shaft, I, carrying pulleys x5 J K, the roller N', provided withteeth O, Acrossbar Q, having teeth R, and suitable connecting andoperating' mechanism, substantially as and for the purpose shown anddescribed.

In testimony that I claim the foregoing I zo have hereunto set my handand seal this 29th day of June, 1881.

. JOHN SCHOLL. [13. s] Witnesses:

PETER WINKELMAN, JOHN A. WINKELMAN.

